javac -h . HelloWorld.java
gcc -shared -fPIC -o libhello.dylib -I"${JAVA_HOME}/include" -I"${JAVA_HOME}/include/dawin" hello.c
#gcc -shared -o hello.dll -I"%JAVA_HOME%/include" -I"%JAVA_HOME%/include/win32" hello.c
javac HelloWorld.java
java HelloWorld
